I work in a medical lab that works with cancer genetics. Today I was discarding FFPE tissue samples. As I was doing so, I felt a miniscule prick from an odd shard of thin glass. There was no blood welling, but I did think there was a puncture, a red dot. I immediately washed it out with bleach and some diluted ethanol. I am checking it now, and I can t see any sign of the puncture site. Should I be worried about contracting blood borne pathogens such as HCV or HIV?